Device for lighting gas-lamps from a distance.



L. SEVERIN. DEVICE FOR LIGHTING GAS LAMPS FROM A DISTANCE.

I APPLICATION FILED APR. 6. 1914.

109 1 50 Patented Sept. 1, 1914.

In V072 0 2 OTON. u, C,

rm; .ibms PETERS coIPHom-L/THQ, WASHIN L wms vmm, or'HAeEn-i ELsTERN,"GERMA Y.

. DEVICE FOR LIGHTING GAs-LA Ps rn'oivr A DISTANCE.

To all whom it may concern; I ,p l Be t known that I, -LUDWIG SEvEnIN, a

subject of the; German: Emperor, residing at Hagen-Delstern, intheProv-ince of wVestph'alia, Prussia, Germany,have invented oer-1 tainnew and useful Improvements in Devices; for Lighting GasLamps from aDistance,

\ of which the following is a specification; I

- The present invention relatesto those devices for lighting gas lampsfrom a distance,- 1n whlch the gas cock "is openedandclosedby means ofan electromagnet, the circuit" of which is closed as theresult ofmemporary rise in pressure in"v the ,gas main. Known devices of thiskindare unsuitable for practicable purposes because,'owingto the gradualrise andfall of gas pressure,

, it may easily happen lthat, I during "the gradual approach andrecession of the two contact-pieces, the following occursL; When-v thesecontact-pieces areloca ted 1n thejnn mediate vicinity of oneuanother, 1nconse-- quence' of small pressurevrvariations in the gas main or ofmechanicalvibration result-1 ing-from' passing vehiclesyorthe like,contact is made for a number; of -times instead of only once as desired,and" consequently} the, gas cockyis actuated many times. 7 In order toavoid this, according to the present invention, an auxiliary switch isprovided in circuit with the electromagnet, which switch, after eachactuation of the gas [cock opens the circuit until the diaphragm hassunk sufficiently far, i. e-.\the contact pins have receded sufiicientlyfar from each other,.to exclude 'the possibility of uncle sired contactbeing made' It is thereby with certainty obtained that at each temporaryrise and fall of pressure the gas cock is actuated only once andconsequently the entire device works reliably.

One example of theapparatus according to the present invention isdiagrammatically represented in the drawing, said apparatus being shownin its essential parts and in various positions of operation.

Figures 1, 2, 3 and 4 represent the apparatus in side elevationrespectively in the normal position, the position of freeing the contactlever by the rising diaphragm, the position of closing circuit throughthe mag net which actuates the gas-cock, and the position ofautomatically opening such circuit again.

' Referring to the drawing, a is the casing and 0 the diaphragmsubjected to the gas Specification of Letters I atent.

idiaphragm 0 being raised the; ratchet;wheel"aZv in which the pawlz' ofthe actuating lever 70 engages thelatter Ibeingheld-up by thespring mand being i atentecl-Sept;1,1914. I Application filed s ne, 914; :seri1no, s2e,9 23 a fulcrumed at g. This lever it is provided 1* with, anarmature is, and by means of the latter can be influenced by theopposite electromagnet The battery oservesias isourceof current'for theelectromagnet and"? the twov contactfp eces p, g serveto open andjclosethe clrcuit of said electromagneti The contact piece 9 canwbe broughtinto; 1

contact '1 with the, contact the result of ajtemporary rise and fall ofgas pressure. According-to the. present in vention there iszlconnectedin 'serieswith the maln' contact device 39, 9 :1 second auxiliary"contact device which comprises the piece p by the:

or lowered as-" stationary contact pin 1" and the contact lever tpivoted'at sl 'This'contact lever is p voted to rock in suchinannerthat, by .virture Of its own 'friction, it tends to remainin any.position duringitsstroke. and" it i-s'rocked onewayor the other eitherby 'thedownwardly bent end u ofthe actuating lever h'orby the "bent armo connected" to the diaphragm. I a I I Themode 'of operation of thedevice'is tollows Fig. l'as' before stated illustrates the devlcevln itsnormal position, 6. withnormal gas pressure and diaphragm in itslowest-position. I The contact device 0, 8,

is closed and the circuit is open at p g. When it is desired ,to lightor extinguish the lamp by turning the gas cook, the pressure isincreased in known manner in the main. Consequently the diaphragm 0rises, the contact pin 9 approaches theplate p and the bent member '2)allows a free path for the contact lever s (of Fig. 2). When the I gaspressure has risento such an extent that the two contact pieces 29, qtouch one another, the circuit of the electromagnet is immediatelyclosed, and by means of the latter the actuating lever h (of Fig. 3) isattracted downwardly with simultaneous rotation of the gas cook. Whenthe lever it moves downward its downwardly bent end it strikes againstthe rear' end of the contact lever t and consequently, as will beunderstood from Fig. 3, opens i the circuit of the electromagnet. Thecontact lever t tends, in virtue of its own friction, to remain in theslanting position, so that at this place the circuit is held open duringthe downward movement of the membrane, which movement starts onlygradually. Any subsequent undesired contacts made by contact pieces 39 gare thus altogether without effect.

undesired contact between thecontact pieces 79, g is impossible, as thecontactlever t of the auxiliary switch pulled down by the bentmemb'er vowing to the further movement of the diaphragm, this contact lever t 1being thus returned to the normal position .1.1In apparatus-for lightinggas as shown in Fig. 1, and the auxiliarycontact device being inconsequence again closed.

What Iclaim as my invention and desire to secure by Letters Patent is Ifrom a distance, the combination with a valve for the gas, an electriccircuit includinga pair of normally separated contact-' pieces, meansfor closing said contact pieces on a temporary rise in gas. pressure,and u I I l electromagnetic means, normally actuated by the closing ofsaid contact piecesyfor opening or closing said valve, of means,1comprising a contact device adapted to be acted upon by saidelectromagnetic means, for

pieces means for closing said contact pieces on a temporary rise in gaspressure, and electromagnetic; means, normally actuated by the closing,of said contact'pieces, for opening or closing said valve, of means,comprising a contact device adapted to be acted upon by saidelectromagnetic means and Only when the diaphragm, as shown in Fig. 4:,has moved so far down that lamps connected in series with said contactpieces, for rendering said contact p eces, after closure, inoperative toclose the circuit until .saidcontactpieces have again separated apredetermined distance.

I 3. In apparatus for lighting gas lamps from a distance, thecombination of an elec- 'tIl'C circuit with a valve for the gas, a pairof normally separated contact pieces, means for closing said contactpieces on a tenip'o rary rise in gas pressure, and electromagneticinieans, normally actuated by the closing' of said 'e'ontact pieceg foropening or clos ngsaid valve, contact device adapted to be opened by themovement ofs'aid elec tromagnetie means and connected in series'withsaid contact pieces, and means influenced by reduction of the gaspressure for recl'o's'irrg said contact device;

4. In apparatus for lighting gas lamps from a distance, the combinationof an electric circuit with a valve for the gas, pair of normallyseparated contact pieces, means comprising a diaphragm for closing saidcontact pieces on a temporaryrise in gas pressure, and electromagneticmeans, normally'a'ctu'ated by the closing of said con-tact pieces, foropening or elosin'gsaid valve, of a-fi-X'edconta ct piece and arockinglever in series 1 with said contact pieces; and meansoper'atively connected to said diaphragm for drawing: said lever andcontact piece into contact on the diaphragm returning to its 1normalp'osition, said electromagnetic means after actuationholding saidlever away from said contact piece. In testimony whereof, Ihave signedmy name to this specification in the presence of two subscribingwitnesses I i LUDIVIG SEVERIN. [14. s.] Witnesses:

Hanna NUFER, ALBERT NUFER.

Copies of this patent may 'be obtained for five cents each, byaddressing the Commissioner of faten ts,

- I Washington, 0; I I

